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Hib vaccine (Haemophilus infl uenzae type b conjugate)
When: At 2, 4, 6 and 12 months old
Why your baby needs this: Hib is a serious bacterial infection that occurs mostly in infants. Complications include meningitis, pneumonia, sepsis, severe throat infection and arthritis, and can result in permanent brain damage, even death. Common in the 1980s, meningitis is now rare in the U.S., thanks to this vaccine.

NEXT: Pneumococcal conjugate vaccine (PCV)